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# MSE Forum

edited 7 December 2009 at 2:23PM
80 replies 15.4K views
Former MSE
975 Posts
edited 7 December 2009 at 2:23PM
Poll ran 30 November-7 December 2009.

Maths and MoneySaving make a lovely couple – but how good is your money maths? If you went in a shop and saw 30% off £16.99 would you instantly know the answer?

Which of these is nearest to your situation?

A. Master-matician. Yes I can do most shop maths in seconds no probs. - 38% (5299 votes)
B. Mathematician. When I think about it I can do it. - 48% (6733 votes)
C. Sum yes sum no. I can do the easy ones. - 12% (1636 votes)
D. Zero sum game. Even with a calculator it's a struggle. - 3% (417 votes)

Voting has now closed, but you can still click 'post reply' to discuss below. Thanks

## Replies

• Forumite
24.8K Posts
I voted B.

I always do it with 10%, so in the example above, I'd do 10% off then times it by 3.

Where there is a 5%, I still working it out using 10%, then halve it.

If it's something else, for example, 33%, then I'd find it a little difficult to do it in my head so I'd just do 30% and know I'd be saving a little more extra too.
Tank fly boss walk jam nitty gritty...
• Forumite
20.6K Posts
Forumite
When it comes to working out the cheapest product/best value, I can do the maths in seconds :cool: :rotfl:
• Forumite
6.3K Posts
Percentages no problem, estimating my shopping trolley on the way round never works, i'm sure the supermarket fairies put stuff in there without me adding it
4 Stones and 0 pounds or 25.4kg lighter :j
• Forumite
2.9K Posts
Forumite
shellsuit wrote: »
I voted B.

I always do it with 10%, so in the example above, I'd do 10% off then times it by 3.

Same here
• Forumite
4.3K Posts
I've been a number cruncher for years so it's no problem - it's only practice. I new a bloke who could add up pounds(up to thousands) shillings and pence all at one go and get it right!
The only thing that is constant is change.
• Forumite
19.5K Posts
My favourites are wrong maths in supermarkets, ie can of beans for 42p or 4 can multipack for £1.74, er no thanks.
Posts are not advice and must not be relied upon.
• Forumite
13.7K Posts
richardw wrote: »
My favourites are wrong maths in supermarkets, ie can of beans for 42p or 4 can multipack for £1.74, er no thanks.

We always seem to spot the none bargains too LOL not what Tesco want to hear I am sure;)
Free impartial debt advice from: National Debtline or Stepchange[/CENTER]
• Forumite
2 Posts
I grew up with £SD and found it very difficult to work out %s in the pre- calculator days. Though I always knew there were 100 shillings in a Fiver, I didn't have one until I was 18. It is so much easier nowadays. For the above example, round it up to £17.00 and then, shift the decimal point. 10% is £1.70 , 3 times that is the discount of £5.40 approx.
• Forumite
2 Posts
Whoops ! That should of course be £5.10p !!
• Forumite
3K Posts
I did A-level maths at school (failed) - 2 years of simultaneous and quadratic equations, integral and differential calculus. Still dont know what they're for. I was alright until they started using letters instead or numbers. The only thing I need maths for in real life is shopping and playing darts.:rotfl:
This discussion has been closed.
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